package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.service.OrderService;
import com.sky.utils.HttpClientUtil;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
import com.sky.websocket.WebSocketServer;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Slf4j
@Service
public class OrderServiceImpl implements OrderService {
    @Autowired
    private AddressBookMapper addressBookMapper;
    @Autowired
    private UserMapper userMapper;
    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private ShopCartMapper shopCartMapper;
    @Autowired
    private OrderDetailMapper orderDetailMapper;
    @Autowired
    private WeChatPayUtil weChatPayUtil;
    @Autowired
    private OrderService orderService;
    @Autowired
    private WebSocketServer webSocketServer;

    @Value("${sky.shop.adress}")
    private String shopAddress;

    @Value("${sky.baidu.ak}")
    private String ak;

    @Override
    public OrderSubmitVO sumbit(OrdersSubmitDTO ordersSubmitDTO) {
        //用户下单，就是往order表和order_detail表中添加数据
        AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());
        if (addressBook == null) {
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }
        checkOutOfRange(addressBook.getCityName()+addressBook.getDistrictName()+addressBook.getDetail());
        User user = userMapper.selectById(BaseContext.getCurrentId());
        ShoppingCart shoppingCart = new ShoppingCart();
        shoppingCart.setUserId(BaseContext.getCurrentId());
        List<ShoppingCart> shoppingCartList = shopCartMapper.list(shoppingCart);
        if (shoppingCartList == null || shoppingCartList.size() == 0) {
            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }

        //1.补充order表所需要的字段，往order表插入数据
        Orders order = new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO,order);
        order.setNumber(System.currentTimeMillis()+"");
        order.setStatus(Orders.PENDING_PAYMENT);
        order.setUserId(BaseContext.getCurrentId());
        order.setOrderTime(LocalDateTime.now());
        order.setPayStatus(Orders.UN_PAID);
        order.setPhone(addressBook.getPhone());
        order.setAddress(addressBook.getDetail());
        order.setConsignee(addressBook.getConsignee());
        order.setUserName(user.getName());
        orderMapper.insert(order);

        //2.补充order_detail表字段，往order_detail表插入数据
        List<OrderDetail> orderDetailList = new ArrayList<>();
        shoppingCartList.forEach(cart -> {
            OrderDetail orderDetail = new OrderDetail();
            orderDetail.setOrderId(order.getId());
            orderDetail.setDishId(cart.getDishId());
            orderDetail.setSetmealId(cart.getSetmealId());
            orderDetail.setName(cart.getName());
            orderDetail.setImage(cart.getImage());
            orderDetail.setNumber(cart.getNumber());
            orderDetail.setAmount(cart.getAmount());
            orderDetail.setDishFlavor(cart.getDishFlavor());
            orderDetailList.add(orderDetail);
        });
        orderDetailMapper.insertBatch(orderDetailList);

        //3.清空购物车
        shopCartMapper.clean(BaseContext.getCurrentId());

        //4.返回数据
        return OrderSubmitVO.builder()
                .id(order.getId())
                .orderNumber(order.getNumber())
                .orderTime(order.getOrderTime())
                .orderAmount(order.getAmount())
                .build();
    }

    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        // 当前登录用户id
        /*Long userId = BaseContext.getCurrentId();
        User user = userMapper.selectById(userId);

        //调用微信支付接口，生成预支付交易单
        JSONObject jsonObject = weChatPayUtil.pay(
                ordersPaymentDTO.getOrderNumber(), //商户订单号
                new BigDecimal(0.01), //支付金额，单位 元
                "苍穹外卖订单", //商品描述
                user.getOpenid() //微信用户的openid
        );

        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
            throw new OrderBusinessException("该订单已支付");
        }

        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));*/
        paySuccess(ordersPaymentDTO.getOrderNumber());

        OrderPaymentVO vo = new OrderPaymentVO();
        return vo;
    }

    public void paySuccess(String outTradeNo) {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();

        // 根据订单号查询当前用户的订单
        Orders ordersDB = orderMapper.getByNumberAndUserId(outTradeNo, userId);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);

        Map map = new HashMap();
        map.put("orderId", ordersDB.getId());
        map.put("type",1);
        map.put("content", "订单号：" + outTradeNo);
        webSocketServer.sendToAllClient(JSON.toJSONString(map));

    }

    @Override
    public PageResult pageQuery4User(OrdersPageQueryDTO ordersPageQueryDTO) {
//        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());
//        ordersPageQueryDTO.setUserId(BaseContext.getCurrentId());
//        Page<Orders> page = orderMapper.list(ordersPageQueryDTO);
//
//        List<OrderVO> list = new ArrayList<>();
//
//        if(page != null && page.getTotal() > 0)
//        {
//            for (Orders orders : page)
//            {
//                Long id = orders.getId();
//                List<OrderDetail> orderDetails = orderDetailMapper.getByOrderId(id);
//
//                OrderVO orderVO = new OrderVO();
//                BeanUtils.copyProperties(orders, orderVO);
//                orderVO.setOrderDetailList(orderDetails);
//
//                list.add(orderVO);
//            }
//        }
//        return new PageResult(page.getTotal(), list);

        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());
        ordersPageQueryDTO.setUserId(BaseContext.getCurrentId());
        Page<OrderVO> orderVO = orderMapper.list1(ordersPageQueryDTO);

        return new PageResult(orderVO.getTotal(), orderVO.getResult());

    }

    @Override
    public OrderVO getOrderDetailById(Long id) {
        OrdersPageQueryDTO param = new OrdersPageQueryDTO();
        param.setOrderId( id);
        List<OrderVO> list = orderMapper.list1(param);
        return list.get(0);
    }

    @Override
    public void cancel(Long id) throws Exception {
        Orders ordersDB = orderMapper.getById(id);

        // 校验订单是否存在
        if (ordersDB == null) {
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }

        //订单状态 1待付款 2待接单 3已接单 4派送中 5已完成 6已取消
        if (ordersDB.getStatus() > 2) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        Orders orders = new Orders();
        orders.setId(ordersDB.getId());

        // 订单处于待接单状态下取消，需要进行退款
        if (ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED)) {
            //调用微信支付退款接口
            weChatPayUtil.refund(
                    ordersDB.getNumber(), //商户订单号
                    ordersDB.getNumber(), //商户退款单号
                    new BigDecimal(0.01),//退款金额，单位 元
                    new BigDecimal(0.01));//原订单金额

            //支付状态修改为 退款
            orders.setPayStatus(Orders.REFUND);
        }

        // 更新订单状态、取消原因、取消时间
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason("用户取消");
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    @Override
    public void repetition(Long id) {
        //根据ID查询订单
        Orders order = orderMapper.getById(id);
        //判断订单是否存在
        if (order == null) {
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        //根据订单ID查询订单详情
        List<OrderDetail> orderDetails = orderDetailMapper.getByOrderId(id);
        List<ShoppingCart> prams = new ArrayList<>();
        for (OrderDetail orderDetail : orderDetails)
        {
            ShoppingCart shoppingCart = ShoppingCart.builder()
                    .name(orderDetail.getName())
                    .image(orderDetail.getImage())
                    .userId(BaseContext.getCurrentId())
                    .dishId(orderDetail.getDishId())
                    .setmealId(orderDetail.getSetmealId())
                    .dishFlavor(orderDetail.getDishFlavor())
                    .number(orderDetail.getNumber())
                    .amount(orderDetail.getAmount())
                    .createTime(LocalDateTime.now())
                    .build();

            prams.add(shoppingCart);
        }
        //构造购物车对象并添加到购物车
        log.info("购物车数据：{}", prams);
        shopCartMapper.insertBath(prams);

    }

    @Override
    public PageResult conditionSearch(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());
        Page<OrderVO> list = orderMapper.list1(ordersPageQueryDTO);
        return new PageResult(list.getTotal(), list.getResult());
    }

    @Override
    public OrderStatisticsVO statistics() {
        Integer toBeConfirmed = orderMapper.countStatus(Orders.TO_BE_CONFIRMED);
        Integer confirmed = orderMapper.countStatus(Orders.CONFIRMED);
        Integer deliveryInProgress = orderMapper.countStatus(Orders.DELIVERY_IN_PROGRESS);

        // 将查询出的数据封装到orderStatisticsVO中响应
        OrderStatisticsVO orderStatisticsVO = new OrderStatisticsVO();
        orderStatisticsVO.setToBeConfirmed(toBeConfirmed);
        orderStatisticsVO.setConfirmed(confirmed);
        orderStatisticsVO.setDeliveryInProgress(deliveryInProgress);
        return orderStatisticsVO;
    }

    @Override
    public OrderVO getOrderDetailByOrderId(Long id) {
        OrdersPageQueryDTO param = new OrdersPageQueryDTO();
        param.setOrderId(id);
        Page<OrderVO> orderVOS = orderMapper.list1(param);
        OrderVO orderVO = orderVOS.getResult().get(0);
        return orderVO;
    }

    @Override
    public void confirm(OrdersConfirmDTO ordersConfirmDTO) {
        orderMapper.confirm(ordersConfirmDTO);
    }

    @Override
    public void rejection(OrdersRejectionDTO ordersRejectionDTO) throws Exception {
        Orders ordersDB = orderMapper.getById(ordersRejectionDTO.getId());

        // 订单只有存在且状态为2（待接单）才可以拒单
        if (ordersDB == null || !ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        //支付状态
        Integer payStatus = ordersDB.getPayStatus();
//        if (payStatus == Orders.PAID) {
//            //用户已支付，需要退款
//            String refund = weChatPayUtil.refund(
//                    ordersDB.getNumber(),
//                    ordersDB.getNumber(),
//                    new BigDecimal(0.01),
//                    new BigDecimal(0.01));
//            log.info("申请退款：{}", refund);
//        }

        // 拒单需要退款，根据订单id更新订单状态、拒单原因、取消时间
        Orders orders = new Orders();
        orders.setId(ordersDB.getId());
        orders.setStatus(Orders.CANCELLED);
        orders.setRejectionReason(ordersRejectionDTO.getRejectionReason());
        orders.setCancelTime(LocalDateTime.now());

        orderMapper.update(orders);
    }

    @Override
    public void cancel1(OrdersCancelDTO ordersCancelDTO) throws Exception {
            // 根据id查询订单
            Orders ordersDB = orderMapper.getById(ordersCancelDTO.getId());

            //支付状态
            Integer payStatus = ordersDB.getPayStatus();
//            if (payStatus == 1) {
//                //用户已支付，需要退款
//                String refund = weChatPayUtil.refund(
//                        ordersDB.getNumber(),
//                        ordersDB.getNumber(),
//                        new BigDecimal(0.01),
//                        new BigDecimal(0.01));
//                log.info("申请退款：{}", refund);
//            }

            // 管理端取消订单需要退款，根据订单id更新订单状态、取消原因、取消时间
            Orders orders = new Orders();
            orders.setId(ordersCancelDTO.getId());
            orders.setStatus(Orders.CANCELLED);
            orders.setCancelReason(ordersCancelDTO.getCancelReason());
            orders.setCancelTime(LocalDateTime.now());
            orderMapper.update(orders);

    }

    @Override
    public void delivery(Long id) {
        // 根据id查询订单
        Orders ordersDB = orderMapper.getById(id);

        // 校验订单是否存在，并且状态为3
        if (ordersDB == null || !ordersDB.getStatus().equals(Orders.CONFIRMED)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        Orders orders = new Orders();
        orders.setId(ordersDB.getId());
        // 更新订单状态,状态转为派送中
        orders.setStatus(Orders.DELIVERY_IN_PROGRESS);

        orderMapper.update(orders);
    }

    @Override
    public void complete(Long id) {
        Orders ordersDB = orderMapper.getById(id);

        // 校验订单是否存在，并且状态为4
        if (ordersDB == null || !ordersDB.getStatus().equals(Orders.DELIVERY_IN_PROGRESS)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }

        Orders orders = new Orders();
        orders.setId(ordersDB.getId());
        // 更新订单状态,状态转为完成
        orders.setStatus(Orders.COMPLETED);
        orders.setDeliveryTime(LocalDateTime.now());

        orderMapper.update(orders);
    }

    @Override
    public void reminder(Long id) {
        Map map = new HashMap();
        map.put("orderId",id);
        map.put("type",2);
        map.put("content","订单ID"+ id);
        webSocketServer.sendToAllClient(JSON.toJSONString(map));
    }

    private void checkOutOfRange(String address) {
        Map map = new HashMap();
        map.put("address",shopAddress);
        map.put("output","json");
        map.put("ak",ak);

        //获取店铺的经纬度坐标
        String shopCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        JSONObject jsonObject = JSON.parseObject(shopCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("店铺地址解析失败");
        }

        //数据解析
        JSONObject location = jsonObject.getJSONObject("result").getJSONObject("location");
        String lat = location.getString("lat");
        String lng = location.getString("lng");
        //店铺经纬度坐标
        String shopLngLat = lat + "," + lng;

        map.put("address",address);
        //获取用户收货地址的经纬度坐标
        String userCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        jsonObject = JSON.parseObject(userCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("收货地址解析失败");
        }

        //数据解析
        location = jsonObject.getJSONObject("result").getJSONObject("location");
        lat = location.getString("lat");
        lng = location.getString("lng");
        //用户收货地址经纬度坐标
        String userLngLat = lat + "," + lng;

        map.put("origin",shopLngLat);
        map.put("destination",userLngLat);
        map.put("steps_info","0");

        //路线规划
        String json = HttpClientUtil.doGet("https://api.map.baidu.com/directionlite/v1/driving", map);

        jsonObject = JSON.parseObject(json);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("配送路线规划失败");
        }

        //数据解析
        JSONObject result = jsonObject.getJSONObject("result");
        JSONArray jsonArray = (JSONArray) result.get("routes");
        Integer distance = (Integer) ((JSONObject) jsonArray.get(0)).get("distance");

        if(distance > 5000){
            //配送距离超过5000米
            throw new OrderBusinessException("超出配送范围");
        }
    }


}
